Walnut Shell Blasting Media
Black Walnut Shell, known for its thickness and hardness, is versatile for blast cleaning and polishing, while the lighter and softer English Walnut Shell is optimal for polishing with minimal surface profiling. Both varieties are effective for cleaning and finishing soft metals, fiberglass, plastics, wood, and stone, and are suitable for deburring and deflashing moldings, castings, and electrical components.
Physical Characteristics
Shape: Angular to Subangular
Hardness: 4.5 Mohs
Bulk Density: 22-33 lbs./cu.ft.
Specific Gravity: 1.2-1.4 g/cc
Free Silica: No Free Silica
Type: Organic
Recyclability: Low
Surface Etching: None